Bhagavad Gita 18.75 Chapter 18, Verse 75

व्यासप्रसादाच्छ्रुतवानेतद्गुह्यमहं परम् ।
योगं योगेश्वरात्कृष्णात्साक्षात्कथयतः स्वयम् ॥१८.७५॥

vyāsaprasādācchrutavānetadguhyamahaṃ param
yogaṃ yogeśvarātkṛṣṇātsākṣātkathayataḥ svayam

Meaning

By the grace of Vyasa I heard this supreme secret yoga directly from Krishna, the master of yoga, as he himself spoke it.

Newly written by Bhajan Dhun — scholarly review in progress.

Reference: Bhagavad Gita 18.75 (Chapter 18, Liberation through Renunciation (Moksha Sannyasa Yoga), Verse 75)